circos : Circular layout visualization of genomic and other data ( http://mkweb.bcgsc.ca/circos/ )
epix : 2- and 3-D plotter for creating images (to be used in LaTeX) ( http://mathcs.holycross.edu/~ahwang/current/ePiX.html )
extrema : Interactive data analysis and visualization tool ( http://exsitewebware.com/extrema/ )
fig2sxd : Utility to convert files in xfig format to OpenOffice.org Draw format ( http://sourceforge.net/projects/fig2sxd )
fityk : General-purpose nonlinear curve fitting and data analysis ( http://fityk.nieto.pl/ )
g3data : Tool for extracting data from graphs ( https://github.com/pn2200/g3data )
gcalc : Java Mathematical Graphing System ( http://gcalc.net/ )
gfsview : Graphical viewer for Gerris simulation files ( http://gfs.sourceforge.net/ )
ggobi : Visualization program for exploring high-dimensional data ( http://www.ggobi.org/ )
gle : Graphics Layout Engine ( http://glx.sourceforge.net/ )
gnuplot : Command-line driven interactive plotting program ( http://www.gnuplot.info/ )
grace : Motif based XY-plotting tool ( http://plasma-gate.weizmann.ac.il/Grace/ )
gri : Language for scientific graphics programming ( http://gri.sourceforge.net/ )
gwyddion : Framework for Scanning Mode Microscopy data analysis ( http://gwyddion.net/ )
kst : Fast real-time large-dataset viewing and plotting tool ( https://kst.kde.org/ )
labplot : KDE data analysis and visualisation program ( https://edu.kde.org/applications/science/labplot/ )
mayavi : Enthought Tool Suite: Scientific data 3-dimensional visualizer ( HOMEPAGE=" )
nonolith-connect : CEE (Control - Experiment - Explore) analog multitool ( http://www.nonolithlabs.com/cee/ )
opendx : 3D data visualization tool ( http://www.opendx.org/ )
opendx-samples : Samples for IBM Data Explorer ( http://www.opendx.org/ )
paraview : ParaView is a powerful scientific data visualization application ( http://www.paraview.org )
pythonprop : Scripts to prepare and plot VOACAP propagation predictions ( http://www.qsl.net/hz1jw/pythonprop )
pyxplot : Gnuplot like graphing program publication-quality figures ( http://www.pyxplot.org.uk/ )
qtiplot : Qt based clone of the Origin plotting package ( http://soft.proindependent.com/qtiplot.htm )
quickplot : A fast interactive 2D plotter ( http://quickplot.sourceforge.net/ )
spectromatic : Generates time-frequency analysis images from wav files ( http://ieee.uow.edu.au/~daniel/software/spectromatic/ )
spyview : Interactive plotting program ( http://kavli.nano.tudelft.nl/~gsteele/spyview/ )
veusz : Qt scientific plotting package with good Postscript output ( http://home.gna.org/veusz/ )
visit : A software that delivers parallel interactive visualizations ( https://wci.llnl.gov/codes/visit/home.html )
xd3d : Scientific visualization tool ( http://www.cmap.polytechnique.fr/~jouve/xd3d/ )
xds-viewer : Viewing X-ray diffraction and control images in the context of data processing by the XDS ( http://xds-viewer.sourceforge.net/ )
xgraph : X11 Plotting Utility ( http://www.isi.edu/nsnam/xgraph/ )
xyscan : Tool for extracting data points from graphs ( http://star.physics.yale.edu/~ullrich/xyscanDistributionPage/ )
yt : Astrophysical Simulation Analysis and Vizualization package ( http://yt-project.org/ )
zhu3d : Interactive 3D mathematical function viewer ( http://sourceforge.net/projects/zhu3d )
Add an ebuild in portage :
The ebuild is now in the portage tree.
You can also use layman : emerge layman then layman -a gentoo
For Paludis use this rsync : rsync://gentoo.zugaina.org/gentoo-portage
If you have a problem : ycarus(-at-)zugaina.org